Flat element for thermally adjusting indoor air

Abstract

The invention relates to a flat element ( 1 ) for thermally adjusting indoor air, especially for cooling indoor air. Said flat element ( 1 ) comprises an air guiding chamber ( 2 ) and an active cover surface ( 3 ) having microholes ( 4 ). The air guiding chamber ( 2 ) has an upper side ( 5 ), a plurality of sidewalls ( 6 a, 6 b ), at least one opening ( 7 ) for letting air in and at least one opening ( 8 ) for discharging air. The active cover surface ( 3 ) closes the air guiding chamber ( 2 ) towards its open bottom side. The upper side ( 5 ) of the air guiding chamber ( 2 ) is shaped so as to have at least one baffle ( 10 ) having at least one air guiding edge ( 11 ).

The invention claimed is: 
     
       1. A flat element ( 1 ) for thermal adjustment of indoor air in the form of a ceiling element or of a wall element, the flat element comprising:
 an air conduct device ( 2 ) comprising baffles ( 10 ) connected to each other and forming a closed upper surface ( 5 ), a first side wall with at least one opening ( 7 ) for inlet of air, a second side wall with at least one opening ( 8 ) for outlet of air, wherein the air conduct device ( 2 ) has a bottom side that is open, wherein the baffles ( 10 ) extend from the first side wall all the way to the second side wall; 
 an active ceiling area ( 3 ) in the form of a sheet metal with micro-holes ( 4 ); 
 wherein into each opening ( 7 ) for inlet of air and into each opening ( 8 ) for outlet of air a connecting pipe nozzle ( 9 ) is inserted and is essentially hermetically sealed; 
 wherein the active ceiling area ( 3 ) terminates the air conduct device ( 2 ) at the bottom side and the air conduct device ( 2 ) and the active ceiling area ( 3 ) are essentially hermetically sealed with each other; 
 wherein the baffles ( 10 ) when viewed in cross-section have a triangle wave shape, a multiangle wave shape or a sinuous wave shape, 
 wherein the baffles ( 10 ) comprise a front side with a lower part ( 12 ) and a back side with a lower part ( 13 ), wherein the lower parts of the front side and of the back side are arranged angled to each other and are connected to each other to an edge forming an air conduct angle ( 11 ); 
 wherein the front side and the back side are oriented such the air conduct angle points to the active ceiling area ( 3 ), 
 wherein the baffles ( 10 ) generate turbulences in an air stream supplied through the at least one opening for inlet of air; 
 wherein the first and second side walls ( 6   a ) and the edge forming the air conduct angle ( 10 ) are arranged parallel to each other. 
 
     
     
       2. The flat element according to  claim 1 , wherein the air conduct angle ( 11 ) of the baffles ( 10 ) are chamfered. 
     
     
       3. The flat element according to  claim 1 , wherein the baffles ( 10 ) independent from each other have the same or different wave lengths (λ) and the same or different amplitudes (A). 
     
     
       4. The flat element according to  claim 1 , wherein the baffles ( 10 ) have the same wave lengths (λ) and the same or different amplitudes (A). 
     
     
       5. The flat element according to  claim 1 , wherein the triangle-shaped baffles ( 10 ) independent from each other are aligned symmetrically or asymmetrically and have either the same or different heights h and downs t, respectively. 
     
     
       6. The flat element according to  claim 1 , wherein the baffles ( 10 ) are arranged symmetrically with the same or different heights h and downs t, respectively. 
     
     
       7. The flat element according to  claim 1 , wherein the baffles ( 10 ) have a length of 600 mm and wherein a distance (d) between the air conduct angle ( 11 ) of the baffles ( 10 ) and an inward side of the active ceiling area ( 3 ) is from 1 mm to 25 mm. 
     
     
       8. The flat element according to  claim 7 , wherein the distance (d) is adjustable. 
     
     
       9. The flat element according to  claim 1 , wherein the triangle shaped baffles ( 10 ) have:
 an angle α between the lower part of the front side ( 12 ) and the lower part of the back side ( 13 ) that is from 72° to 134°, 
 an angle β between an upper part of the back side ( 14 ) of a first baffle ( 10 ) and an upper part of the front side ( 15 ) of a second baffle ( 10 ) is from 75° to 140°, 
 an angle γ between the first side wall and the upper part of the front side ( 16 ) of a first baffle ( 10 ) is from 38° to 72°, 
 an angle δ between the second side wall ( 6   a ) and the upper part of the back side ( 7 ) of the last baffle ( 10 ) is from 38° to 72°, 
 wherein the angle γ and the angle δ have the same value. 
 
     
     
       10. The flat element according to  claim 9 , wherein the first side wall, the second side wall and the baffles together are formed of a single piece, wherein the baffles have chamfered areas ( 18 ) extending between the first and the second side walls and provided with free press cuts ( 19 ) and holes ( 20 ), wherein the first side wall ( 6   a ) has a front side with an edge for stabilization, wherein the second side wail has a second front side with an edge for stabilization, wherein the connecting pipe nozzles ( 9 ) are essentially hermetically sealed relative to the first and second sidewalls, wherein two of the baffles having a triangular shape are arranged between the first and second side walls so that the upper surface has five edges alternatingly positioned at the bottom side or the active sealing area are provided with the angles α, β, γ and δ. 
     
     
       11. The flat element according to  claim 1 , wherein the air conduct device comprises two laterals sidewalls ( 6   b ) connected hermetically sealed to the upper surface and having holes ( 21 ). 
     
     
       12. The flat element according to  claim 1 , wherein the air conduct device ( 2 ) is made of metal or of a metal alloy. 
     
     
       13. The flat element according to  claim 1 , wherein the air conduct device ( 2 ) is made of aluminium, zinc plated steel plate, electrolytically zinc plated steel plate, rustless steel plate, copper or brass. 
     
     
       14. The flat element according to  claim 1 , wherein the micro-holes ( 4 ) in the active ceiling area ( 3 ) are round and have a diameter from about 0.50 mm to about 1.20 mm, and are present in a straight or staggered or regular or irregular in-line configuration. 
     
     
       15. The flat element according to  claim 1  wherein the outward visible side of the active ceiling area ( 3 ) is left in an unprocessed state or that this side is surface-treated. 
     
     
       16. The flat element according to  claim 15 , wherein the outward visible side of the active ceiling area ( 3 ) is powder-coated. 
     
     
       17. The flat element according to  claim 1 , wherein the active ceiling area ( 3 ) has chamfered areas and wherein at least two chamfered areas ( 22 ) opposing each other comprise fixing parts and/or arrests ( 23 ). 
     
     
       18. The flat element according to  claim 1 , wherein a free cross-section in the active ceiling area ( 3 ) is from about 1% to about 4% in reference to the total area of the active ceiling area ( 3 ). 
     
     
       19. The flat element according to  claim 1 , wherein the air conduct device ( 2 ) and the active ceiling area ( 3 ) are hermetically sealed by a sealing material ( 34 ). 
     
     
       20. A device for thermal adjustment of indoor air, wherein the device comprises at least one column of flat elements ( 1   a ,  1   b ,  1   c ) according to  claim 1  that are essentially hermetically sealed with each other. 
     
     
       21. The device according to  claim 20 , wherein
 the connecting pipe nozzle ( 9 ) that is inserted in the opening ( 7 ) for inlet of air in a first air conduct device ( 2 ) is connected hermetically sealed with a conduct supplying air; 
 the connecting pipe nozzle ( 9 ) that is inserted in the opening ( 8 ) for outlet of air in the first air conduct device ( 2 ), is connected hermetically sealed with the connecting pipe nozzle ( 9 ) that is inserted in the opening ( 7 ) for the inlet of air in the second air conduct device ( 2 ), 
 all further air conduct devices ( 2 ) are connected hermetically sealed with each other in analogy to the connection of the first air conduct device ( 2 ) with the second air conduct device ( 2 ), 
 the connecting pipe nozzle ( 9 ) that is inserted in the opening ( 8 ) for outlet of air in the last air conduct device ( 2 ) of said column is closed hermetically sealed with an end cap ( 24 ). 
 
     
     
       22. The device according to  claim 20 , wherein the column of flat elements ( 1   a ,  1   b ,  1   c ) comprises from two to eight flat elements ( 1   a ,  1   b ,  1   c ). 
     
     
       23. The device according to  claim 20 , wherein each air conduct device ( 2 ) and each active ceiling area ( 3 ) is secured individually on at least two opposite rail-shaped ceiling grid profiles ( 25 ), whereby the ceiling grid profiles ( 25 ) are affixed on hanging supports in a ceiling substructure. 
     
     
       24. The device according to  claim 20 , wherein ionized supply air is feed in. 
     
     
       25. The device according to  claim 21 , wherein at least one light source is arranged between the outward visible sides of the active ceiling area ( 3 ) and a separately hung up foil ( 26 ).